CN116925641A - Wear-resistant wax-proof coating and preparation method thereof - Google Patents
Wear-resistant wax-proof coating and preparation method thereof Download PDFInfo
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- CN116925641A CN116925641A CN202311197738.7A CN202311197738A CN116925641A CN 116925641 A CN116925641 A CN 116925641A CN 202311197738 A CN202311197738 A CN 202311197738A CN 116925641 A CN116925641 A CN 116925641A
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- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000002052 molecular layer Substances 0.000 claims abstract description 52
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910021426 porous silicon Inorganic materials 0.000 claims abstract description 46
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004695 Polyether sulfone Substances 0.000 claims abstract description 36
- 244000028419 Styrax benzoin Species 0.000 claims abstract description 36
- 235000000126 Styrax benzoin Nutrition 0.000 claims abstract description 36
- 235000008411 Sumatra benzointree Nutrition 0.000 claims abstract description 36
- 229960002130 benzoin Drugs 0.000 claims abstract description 36
- 235000019382 gum benzoic Nutrition 0.000 claims abstract description 36
- 150000002576 ketones Chemical class 0.000 claims abstract description 36
- 229920006393 polyether sulfone Polymers 0.000 claims abstract description 36
- 229940057950 sodium laureth sulfate Drugs 0.000 claims abstract description 36
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical compound [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 claims abstract description 36
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 32
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 23
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 21
- 238000009210 therapy by ultrasound Methods 0.000 claims description 21
- ICMZTDHPMCAAKJ-UHFFFAOYSA-M O[Mo](=S)=S Chemical compound O[Mo](=S)=S ICMZTDHPMCAAKJ-UHFFFAOYSA-M 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000033444 hydroxylation Effects 0.000 abstract description 2
- 238000005805 hydroxylation reaction Methods 0.000 abstract description 2
- 239000010779 crude oil Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D181/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers
- C09D181/06—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the field of coatings, and relates to a wear-resistant wax-proof coating and a preparation method thereof, in particular to a wear-resistant wax-proof coating which comprises the following components in parts by weight: 20-30 parts of polyethersulfone ketone, 0.3-0.5 part of sodium laureth sulfate, 0.2-0.5 part of benzoin, 0.2-0.5 part of PV88, and 3-7 parts of porous silicon carbide; according to the invention, the porous silicon carbide and molybdenum disulfide nano layer are simultaneously used in the coating for the first time, so that the wear resistance and wax resistance of the coating are simultaneously improved; meanwhile, the problem that the wear resistance is reduced and the wax control rate is not high when the molybdenum disulfide nano layer and the porous silicon carbide are used simultaneously is solved by only using the molybdenum disulfide nano layer to influence the wear resistance effect of the porous silicon carbide, and further using polyvinyl alcohol to coat after hydroxylation of the molybdenum disulfide nano layer; meanwhile, the preparation method of the coating is easy to prepare and low in cost.
Description
Technical Field
The invention relates to the field of coatings, in particular to a wear-resistant wax-proof coating and a preparation method thereof.
Background
The oil casing, also called petroleum casing, is used in oil or gas production to support the well wall during and after well completion, so as to ensure that the whole drilling process and the whole oil well can normally run during and after well completion. In the use process of the oil sleeve, the oil pushing rod is required to push in the oil pumping pipe, the reciprocating motion is continuously carried out in the whole working period, and the abrasion of the inner wall of the oil pipe is aggravated by long-time friction, so that the working safety is affected. In addition, most of crude oil in China is 'three-high' crude oil (high in wax content, high in condensation point and high in viscosity), a mixture which is not easy to flow and has a certain thickness can be deposited on the inner wall of a pipeline in long-term exploitation, and the mixture is called as wax precipitation, and the increase of the wax precipitation increases the conveying resistance, so that a large amount of energy sources are wasted, and periodic cleaning is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a wear-resistant and wax-resistant coating and a preparation method thereof, and aims to solve the problems of low wear resistance and easy wax deposition of an oil sleeve.
The invention is realized by the following technical scheme:
the wear-resistant wax-proof coating comprises the following components in parts by weight: 20-30 parts of polyethersulfone ketone, 0.3-0.5 part of sodium laureth sulfate, 0.2-0.5 part of benzoin, 0.2-0.5 part of PV88 and 3-7 parts of porous silicon carbide.
Further, the wear-resistant wax-proof coating comprises the following components in parts by weight: 25 parts of polyethersulfone ketone, 0.4 part of sodium laureth sulfate, 0.3 part of benzoin, 0.3 part of PV88 and 5 parts of porous silicon carbide.
Further, the coating also comprises 3-5 parts of molybdenum disulfide nano layers.
Further, the coating also comprises 3-5 parts of hydroxyl molybdenum disulfide nano layers.
Further, the composite material also comprises 3-5 parts of polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material.
Further, a preparation method of the wear-resistant wax-proof coating is provided, and the preparation method comprises the following steps: and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, the porous silicon carbide and molybdenum disulfide nano layer are simultaneously used in the coating for the first time, so that the wear resistance and wax resistance of the coating are simultaneously improved; meanwhile, the problem that the wear resistance is reduced and the wax control rate is not high when the molybdenum disulfide nano layer and the porous silicon carbide are used simultaneously is solved by only using the molybdenum disulfide nano layer to influence the wear resistance effect of the porous silicon carbide, and further using polyvinyl alcohol to coat after hydroxylation of the molybdenum disulfide nano layer; meanwhile, the preparation method of the coating is easy to prepare and low in cost.
Detailed Description
The present invention will be described in further detail with reference to the following examples thereof in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Molybdenum disulfide (MoS) in the present invention 2 ) The preparation method of the nano layer comprises the following steps:
adding 1000 mg molybdenum disulfide and 10 mL n-butyllithium into a reaction vessel, stirring for 3 days at 25 ℃, extracting by using n-hexane, evaporating the n-hexane to obtain a solid, dissolving the obtained solid in 1L deionized water, carrying out ultrasonic treatment for 8 hours at 20 ℃, and centrifuging to obtain a precipitate; the precipitate was washed several times with deionized water to remove Li ions, and then the washed precipitate was dried at 60 ℃ to obtain a molybdenum disulfide nanolayer.
In the invention, hydroxy molybdenum disulfide (MoS) 2 The preparation method of the-OH) nano layer comprises the following steps:
5mL of 2-mercaptoethanol is added into 100 mL of 4 mg/mL molybdenum disulfide solution, ultrasonic treatment is carried out for 1 day at 25 ℃, the precipitate is washed for a plurality of times after centrifugation, and the obtained precipitate is freeze-dried to obtain the hydroxy molybdenum disulfide nano layer.
In the invention, polyvinyl alcohol coats the nano-layer composite material (PVA/MoS) of hydroxylated molybdenum disulfide 2 The preparation method of the-OH) comprises the following steps:
adding 100 mg hydroxyl molybdenum disulfide into 5mL of deionized water, heating to 70 ℃ and carrying out ultrasonic treatment for 0.5h, then adding 10 mL of 0.1mg/mL PVA aqueous solution, maintaining the temperature at 70 ℃ for reacting for 0.5h, continuously stirring, naturally cooling to 25 ℃, maintaining the temperature at 25 ℃ for 2h, and maintaining stirring; heating to 90 ℃, reacting for 6 hours at 90 ℃, transferring to a 180 ℃ graphite furnace for heating for 2 hours after the reaction is finished, and obtaining the polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material.
The reagents used in the invention are all commercial products, wherein the average particle diameter of the porous silicon carbide is 50nm, the purity is 99.9 percent, and the specific surface area is 60 m 2 Per gram, bulk density 0.09 g/cm 3 Density of 3.2 g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The molecular weight of the polyvinyl alcohol is 31000-50000.
The method for testing the wear resistance is carried out by adopting the method specified in GB/T1768-2006 method for testing the wear resistance of colored paint and varnish by a rotary rubber grinding wheel method, and the thickness of a paint film is controlled to be 60 mu m during testing.
The method for testing the wax control rate comprises the following steps: the steel plate is coated or uncoated and then fixed on a wax-precipitator so that the test steel plate can be contacted with crude oil while being contacted with circulating water. Crude oil having a wax content of about 20% was added to the measuring vessel, heated to 45 ℃ with a water bath and stirred, and kept at constant temperature for 0.5h. The wax-catcher was put into the crude oil in the measuring vessel, the sample was placed 5cm below the liquid surface, and the flow direction of the sample was perpendicular to the flow direction of the crude oil. Circulating water is introduced into the wax precipitator, the sample is cooled to 30 ℃, and a constant temperature difference is kept between the sample and crude oil. And taking out the wax deposition device after the constant temperature difference is 1h, taking down the sample, and weighing. The calculation formula is that the wax control rate= (amount of wax deposition without coating-amount of wax deposition after coating) no coating x 100%.
Example 1
According to the parts by weight, respectively weighing 20 parts of polyether sulfone ketone, 0.3 part of sodium laureth sulfate, 0.2 part of defoaming agent benzoin, 0.2 part of leveling agent PV88 and 3 parts of porous silicon carbide; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, and adding porous silicon carbide to carry out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 2
According to the parts by weight, respectively weighing 22 parts of polyether sulfone ketone, 0.3 part of sodium laureth sulfate, 0.2 part of defoaming agent benzoin, 0.2 part of leveling agent PV88 and 4 parts of porous silicon carbide; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, and adding porous silicon carbide to carry out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 3
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of flatting agent PV88 and 5 portions of porous silicon carbide are respectively weighed; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, and adding porous silicon carbide to carry out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 4
According to the weight portions, 27 portions of polyether sulfone ketone, 0.5 portion of sodium laureth sulfate, 0.4 portion of benzoin, 0.4 portion of PV88 and 6 portions of porous silicon carbide are respectively weighed; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, and adding porous silicon carbide to carry out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 5
According to the weight portions, respectively weighing 30 portions of polyethersulfone ketone, 0.5 portion of sodium laureth sulfate, 0.5 portion of benzoin, 0.5 portion of PV88 and 7 portions of porous silicon carbide; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, and adding porous silicon carbide to carry out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 6
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 3 portions of molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 7
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 4 portions of molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 8
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 5 portions of molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 9
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 3 portions of hydroxyl molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and hydroxy molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 10
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of dispersing agent sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 4 portions of hydroxyl molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and hydroxy molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 11
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 4 portions of hydroxyl molybdenum disulfide nano layer are respectively weighed; and uniformly stirring and mixing polyethersulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and hydroxy molybdenum disulfide nano layer, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-proof coating.
Example 12
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 3 portions of polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 13
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 4 portions of polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Example 14
According to the weight portions, 25 portions of polyether sulfone ketone, 0.4 portion of sodium laureth sulfate, 0.3 portion of benzoin, 0.3 portion of PV88, 5 portions of porous silicon carbide and 5 portions of polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material are respectively weighed; and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
Table 1 examples 1 to 14 performance test
| Wear resistance (g) | Wax control rate (%) | |
| Example 1 | 0.037 | 27.1 |
| Examples2 | 0.035 | 28.3 |
| Example 3 | 0.026 | 30.1 |
| Example 4 | 0.031 | 31.2 |
| Example 5 | 0.032 | 32.3 |
| Example 6 | 0.034 | 60.3 |
| Example 7 | 0.031 | 60.7 |
| Example 8 | 0.032 | 61.3 |
| Example 9 | 0.025 | 71.3 |
| Example 10 | 0.024 | 71.2 |
| Example 11 | 0.024 | 72.3 |
| Example 12 | 0.018 | 79.8 |
| Example 13 | 0.017 | 80.3 |
| Example 14 | 0.019 | 79.3 |
As can be seen from the data in table 1, in examples 1 to 5, the molybdenum disulfide nanolayer having the wax preventing effect was not added, but the effect was far from the use requirement although the effect was also a certain wax preventing effect. Among them, example 3 was superior in abrasion resistance, so that the subsequent study was further conducted based on example 3. When molybdenum disulfide nanolayers with different contents are added on the basis of the embodiment 3, the wax control rate is unexpectedly improved to about 60%, and then the wear resistance is unexpectedly reduced, which is supposed to be that the porous silicon carbide is adsorbed on the layered molybdenum disulfide nanolayers, so that the effective content of the porous silicon carbide in the coating is reduced, and the wear resistance is affected. Accordingly, the inventor firstly uses the hydroxyl molybdenum disulfide nano layer to replace the body molybdenum disulfide nano layer, improves the content of polar groups in the molybdenum disulfide nano layer laminated structure, and can see that the wear resistance is improved and the wax control rate is also improved in the examples 9-11 added with the hydroxyl molybdenum disulfide nano layer. Under the encouraging of the phenomenon, the inventor further improves the content of polar groups in the molybdenum disulfide nano layer laminated structure, and the hydroxyl molybdenum disulfide nano layer is modified by polyvinyl alcohol to obtain a polyvinyl alcohol coated hydroxylated molybdenum disulfide nano layer, and as can be seen from examples 12-14, the porous silicon carbide is difficult to aggregate with molybdenum disulfide due to the increase of the polar groups and the coating of the polyvinyl alcohol on the molybdenum disulfide nano layer, so that the wear resistance of the coating is improved, and meanwhile, the wax control rate is also improved.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. The wear-resistant wax-proof coating is characterized by comprising the following components in parts by weight: 25 parts of polyethersulfone ketone, 0.4 part of sodium laureth sulfate, 0.3 part of benzoin, 0.3 part of PV88, 5 parts of porous silicon carbide and 3-5 parts of molybdenum disulfide nano-layer.
2. The wear-resistant wax-proof coating is characterized by comprising the following components in parts by weight: 25 parts of polyethersulfone ketone, 0.4 part of sodium laureth sulfate, 0.3 part of benzoin, 0.3 part of PV88, 5 parts of porous silicon carbide and 3-5 parts of hydroxyl molybdenum disulfide nano-layer.
3. The wear-resistant wax-proof coating is characterized by comprising the following components in parts by weight: 25 parts of polyether sulfone ketone, 0.4 part of sodium laureth sulfate, 0.3 part of benzoin, 0.3 part of PV88, 5 parts of porous silicon carbide and 3-5 parts of polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material.
4. The wear-resistant and wax-resistant coating as claimed in claim 2, wherein the preparation method of the hydroxyl molybdenum disulfide nano layer comprises the following steps:
5mL of 2-mercaptoethanol is added into 100 mL of 4 mg/mL molybdenum disulfide solution, ultrasonic treatment is carried out for 1 day at 25 ℃, the precipitate is washed for a plurality of times after centrifugation, and the obtained precipitate is freeze-dried to obtain the hydroxy molybdenum disulfide nano layer.
5. The wear-resistant and wax-resistant coating as claimed in claim 3, wherein the polyvinyl alcohol coated hydroxylated molybdenum disulfide nanolayer composite material is prepared by the following steps:
adding 100 mg hydroxyl molybdenum disulfide nano-layer into 5mL of deionized water, heating to 70 ℃ and carrying out ultrasonic treatment for 0.5h, then adding 10 mL of 0.1mg/mL PVA aqueous solution, maintaining the temperature at 70 ℃ for reacting for 0.5h, continuously stirring, naturally cooling to 25 ℃, maintaining the temperature at 25 ℃ for 2h, and maintaining stirring; heating to 90 ℃, reacting for 6 hours at 90 ℃, transferring to a 180 ℃ graphite furnace for heating for 2 hours after the reaction is finished, and obtaining the polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material.
6. A method for preparing the wear-resistant and wax-resistant coating, characterized in that the method is used for preparing the wear-resistant and wax-resistant coating as claimed in any one of claims 3 or 5, the method comprising the steps of: and uniformly stirring and mixing polyether sulfone ketone, sodium laureth sulfate, benzoin and PV88, heating to 50 ℃, adding the porous silicon carbide and polyvinyl alcohol coated hydroxylated molybdenum disulfide nano-layer composite material, and carrying out ultrasonic treatment at 50 ℃ for half an hour to obtain the wear-resistant wax-control coating.
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